"Building Day" is the first segment of the fortieth episode of Miles from Tomorrowland. It premiered on October 15, 2016 alongside "Galactech: Flight of the Iotas", and is the first segment of the tenth episode in the second season.


Miles and Loretta are getting ready for Building Day where all the Cosmic Explorers get together to build things and earn the Building Day Holo-Badge. Stella informs the family that they are approaching the planet Conmentum where the Building Day Challenge will take place. When they land on the planet, Miles and Loretta meet up with Mrs. Kitumba and M.E.R.C., Leo and Phoebe leave for the finish line and meet with the other parents. Once inside the Cosmic Explorer Challenge Center, Miles and Loretta meet up with Mirandos, Haruna, and Blodger. Mrs. Kitumba reminds the troop that the point of Building Day is to work together and not to compete with each other. The challenge for the Cosmic Explorers is to build their own vehicles and travel through a course on the planet's icy terrain to the finish line. The troops start building their vehicles. Just as Miles and Haruna attempt to add ice axes and a melting devices to their vehicles, they are told by Mrs. Kitumba that they are to cross the course not to destroy the it. Miles and Haruna both decide to add legs and springs to their vehicles. Loretta adds treads to her vehicle, while Mirandos adds parts to make hers hover.

Once their vehicles are finished they put them into the printer and they go to the starting line with Miles and Haruna talking competitively to each other. Mrs. Kitumba reminds the Cosmic Explorers they will only get their holo-badges by crossing the finish line together and to follow the trail. When they start Miles and Haruna start racing against each other, while Loretta, Mirandos, and Blodger have trouble with their vehicles. When they reach a pile of rocks one of the legs of Harruna's vehicle gets caught and uses a super high jump, but this causes one the legs of Miles' vehicle to lose control and go off course. Haruna, Loretta, Mirandos and Blodger offer to help and follow him to the top of an ice mountain, but the spinning mechanism of Blodger's vehicle causes the ice to crack. They fall into a hole in the mountain causing all the vehicles to fall apart. Mirandos discovers on her Calibandroid that the cavern they are in is the mouth of a Cryogeyser, a volcano with ice and it is about to erupt. They come up with a plan to escape by using the parts of their vehicles to make a new one big enough for all of them, break through the ice and fly them out, but only by working together.

Meanwhile at the finish line, the parents are waiting for their kids, but M.E.R.C. points out that they have not shown up yet. Maya, thinking they went off course, takes her BlastJet with Leo, Phoebe and M.E.R.C. joining her, while Prospero and Blodger's parents wait at the finish line in case the kids show up. Inside the Cryogeyser, the water bellow the ice starts bubbling while the Cosmic Explorers are building their new vehicle. Outside the volcano Mrs. Kitumba, Phoebe, Leo and M.E.R.C. are looking for the kids, when they hear it rumbling and find vehicle tracks. When they finished building the new vehicle, calling it the Iceberg, they scramble into the vehicle and Miles flies them up to the ceiling and breaks through just as the Cryogeyser begins to erupt. They meet up with Mrs. Kitumba, Leo, Phoebe and M.E.R.C., and when they reach the finish line Mrs. Kituma presents the Cosmic Exploers their Building Day Holo-Badges for meeting and surpassing the challenge. As Phoebe admires the Iceberg, Miles and the other Cosmic Explorers offer to build more for the Tomorrowland Fleet



  • Mirandos earns her first Holo-Badge in this episode (the Building Day Holo-Badge).


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Miles from TomorrowlandMiles from Tomorrowland: MissionsMiles from Tomorrowland: Mars Rover RescueDisney Junior DJ Shuffle 2
Miles CallistoLoretta CallistoPhoebe CallistoLeo CallistoM.E.R.C.Captain JoeGadfly GarnettProfessor RubiconLysander FloovoxFrida LiangPollockEvaAdmirals Watson and CrickHaruna KitumbaBlodger BloppPipp WimpleyWimm and Kree WimpleyGong Gong and Po PoQueen GemmaPrince RyganSkellig RoBootjet GroovestarMirandosThe GameMasterDr. ConsiliumDr. Zephyr SkyeSheldonVincent CallistoRobo-PenguinsBowtieMiss BakerCommander CopernicusAggroSilas
Season One: "Runaway Shuttle/Surfin' the Whirlpool" • "Ocean in Motion/Explorer Exchange" • "Game On/How I Saved My Summer Vacation" • "Journey to the Frozen Planet/Attack of the Flickorax" • "Catch That IOTA!/Mighty Merc" • "Who Stole the Stellosphere?/Rock N' Roll" • "Happy Captain's Day/Planet of the Plants" • "Ride of the Quarkons/Downsized" • "To the Goldilocks Zone/Hiccup in the Plan" • "On Spaceguard/Spaceship Invader" • "The Great Blastboard Chase/Adventures in Robot-Pet Sitting" • "Unplugged/Junked" • "Mama Merc/Space Race" • "The Neptune Adventure/Eye to Eye" • "Yuri's Night/I, Stella" • "Frozen Food/Later, Multivator" • "Lunar New Year/The Hoverbike Diaries" • "The Search for Skellig Ro/Endangered Species" • "Blasteroid!/Magnetic Merc" • "A Growing Problem/The Tardigrade Escapade" • "Miles vs. The Volcano/Scavengers of Mars" • "Unexpected Ally/Skyrise" • "Ghost Moon/Stormy Night in a Dark Nebula" • "Team Exo-Flex/Dino World" • "The Pluto Rescue/The Taking of the Solar Express" • "The Space Trader/The Quantum Cup" • "The Legend of Sandelion/The Mystery of Atlantix" • "The Hitchhiker's Ride Through the Galaxy/Escape from the Tethoscape" • "The Discovery Expedition/Snow Globe" • "Galactech: Secrets of the Black Hole"

Season Two: "Galactech: Captain Miles/The Search for Spot" • "The Blobbysitters/Astro-Cavers" • "Galactech: How to Build a Robot-Pet/Career Day" • "Galloping Groundshakers/Galactech: March of the Robo-Penguins" • "The Tiny Aliens/The Adventures of Jet Retrograde" • "Galactech: The Galactech Grab/Galactech: An Admiral Rescue" • "Galaxias Quest/Galactech: Mission to the Sun" • "The First Day of Galactic School/Miles Underwater" • "The Galactic Fair/Unfair Getaway" • "Building Day/Galactech: Flight of the Iotas" • "Galactech: Still Rocketing/Merc's Night Out" • "Space Junkers/Help Us, Jet Retrograde!" • "Blackout on Bloppsburgh/The Robot Thief" • "Back in the Groove/Saving Lumaro" • "Galactech: The S'Leet Heist/Galactech: The S'Leet Fleet" • "Once in a Blue Moon/The Queen Gemma Dilemma" • "Galactech: The Mystery of the Dinosaurs" • "Who Stole the Dinosaur?/Nine Minutes 'Til Bedtime" • "Chasing the Stormchaser/Galactech: Loretta‘s Lost BraceLex" • "Gamechangers/Goon Baby Goon" • "Beneath Europa/Callistos on Ice" "Galactech: The Space Trader Strikes Back/Galactech: The Vanishing Callistos" • "Galactech: The Search for the Plectrix/Robo-Monkey Business" • "Connect and Protect"
Season Three: "The Great Space Train Robbery/Mission Pets One" • "Villain After Villain/The Discover-Bot Takeover" • "Invaders from Tomorrowland/Rise of the Mountain Crushers" • "Battle for the Zenith/Mission Force Plus One" • "The Magsteeds of Infurnia" • "Stranded in Space/Plant Transplant" • "How to Build a Better Villain/The Goopopolis Swindle" • "Bots of Fury/The Accidental Captives" • "The Junk Monster of Planet Crunkle/The Lost Empire" • "Face-Off/The Big Escape" • "Grendel's Moving Castle/The Great Gadfly" • "Shoom Balla Boom/Friend or FoeBot" • "Deep Trouble/Double Trouble" • "Malison to the Rescue/The Last Guardian" • "Sidekicks For Hire/The Illumin-Aliens" • "Villain Force One/Villain Force Two" • "The Suit Pursuit/Operation Groovestar" • "The Space Station Situation" • "Aggro's Jam/Sea Change" • "Saving Silas/Attack of the Arachno-Bots" • "The Nemesystems Takeover"

StellosphereStar JetterScout RoverPhoton FlyerZenithI.O.T.A.Exo-FlexBlastboardQuestcomLazerangBracelexFlash BeamGalactech Globe
ThurioMarsTrident Research StationTempestoroAtlantixTrexor
Way OutLaunch this FunkWorlian Birthday SongThere's a Great Big Beautiful Tomorrow
See also
Cosmic ExplorersMission Force OneAnkylosaurusPteranodonTyrannosaurus RexTriceratops
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